Home / 5,288.76-7,292.40-4,290.96

Finding the Fourth Proportional to 5,288.76, 7,292.40 and 4,290.96

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Solution

The fourth proportional to 5,288.76, 7,292.40 and 4,290.96 is: 5,916.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.76 : 7,292.40 = 4,290.96 : x
  2. Step 2: Convert to fraction form
    5,288.76/7,292.40 = 4,290.96/x
  3. Step 3: Cross multiply
    5,288.76x = 7,292.40 × 4,290.96
  4. Step 4: Simplify right side
    5,288.76x = 31,291,396.70
  5. Step 5: Solve for x
    x = 31,291,396.70/5,288.76
  6. Step 6: Final answer
    x = 5,916.58

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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.