Home / 5,280.20-7,938.30-4,313.32

Finding the Fourth Proportional to 5,280.20, 7,938.30 and 4,313.32

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Solution

The fourth proportional to 5,280.20, 7,938.30 and 4,313.32 is: 6,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.20 : 7,938.30 = 4,313.32 : x
  2. Step 2: Convert to fraction form
    5,280.20/7,938.30 = 4,313.32/x
  3. Step 3: Cross multiply
    5,280.20x = 7,938.30 × 4,313.32
  4. Step 4: Simplify right side
    5,280.20x = 34,240,428.16
  5. Step 5: Solve for x
    x = 34,240,428.16/5,280.20
  6. Step 6: Final answer
    x = 6,484.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.