Home / 6,345.76-8,756.88-3,551.20

Finding the Fourth Proportional to 6,345.76, 8,756.88 and 3,551.20

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Solution

The fourth proportional to 6,345.76, 8,756.88 and 3,551.20 is: 4,900.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.76 : 8,756.88 = 3,551.20 : x
  2. Step 2: Convert to fraction form
    6,345.76/8,756.88 = 3,551.20/x
  3. Step 3: Cross multiply
    6,345.76x = 8,756.88 × 3,551.20
  4. Step 4: Simplify right side
    6,345.76x = 31,097,432.26
  5. Step 5: Solve for x
    x = 31,097,432.26/6,345.76
  6. Step 6: Final answer
    x = 4,900.51

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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.