Home / 5,250.38-7,875.45-2,478.35

Finding the Fourth Proportional to 5,250.38, 7,875.45 and 2,478.35

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Solution

The fourth proportional to 5,250.38, 7,875.45 and 2,478.35 is: 3,717.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.38 : 7,875.45 = 2,478.35 : x
  2. Step 2: Convert to fraction form
    5,250.38/7,875.45 = 2,478.35/x
  3. Step 3: Cross multiply
    5,250.38x = 7,875.45 × 2,478.35
  4. Step 4: Simplify right side
    5,250.38x = 19,518,082.13
  5. Step 5: Solve for x
    x = 19,518,082.13/5,250.38
  6. Step 6: Final answer
    x = 3,717.46

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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.