Home / 7,477.76-10,319.36-4,291.20

Finding the Fourth Proportional to 7,477.76, 10,319.36 and 4,291.20

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Solution

The fourth proportional to 7,477.76, 10,319.36 and 4,291.20 is: 5,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.76 : 10,319.36 = 4,291.20 : x
  2. Step 2: Convert to fraction form
    7,477.76/10,319.36 = 4,291.20/x
  3. Step 3: Cross multiply
    7,477.76x = 10,319.36 × 4,291.20
  4. Step 4: Simplify right side
    7,477.76x = 44,282,416.18
  5. Step 5: Solve for x
    x = 44,282,416.18/7,477.76
  6. Step 6: Final answer
    x = 5,921.88

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.