Home / 5,160.57-7,740.85-1,264.94

Finding the Fourth Proportional to 5,160.57, 7,740.85 and 1,264.94

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Solution

The fourth proportional to 5,160.57, 7,740.85 and 1,264.94 is: 1,897.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.57 : 7,740.85 = 1,264.94 : x
  2. Step 2: Convert to fraction form
    5,160.57/7,740.85 = 1,264.94/x
  3. Step 3: Cross multiply
    5,160.57x = 7,740.85 × 1,264.94
  4. Step 4: Simplify right side
    5,160.57x = 9,791,710.80
  5. Step 5: Solve for x
    x = 9,791,710.80/5,160.57
  6. Step 6: Final answer
    x = 1,897.41

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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.