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Finding the Fourth Proportional to 4,176.40, 6,264.40 and 1,402.80

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Solution

The fourth proportional to 4,176.40, 6,264.40 and 1,402.80 is: 2,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,176.40 : 6,264.40 = 1,402.80 : x
  2. Step 2: Convert to fraction form
    4,176.40/6,264.40 = 1,402.80/x
  3. Step 3: Cross multiply
    4,176.40x = 6,264.40 × 1,402.80
  4. Step 4: Simplify right side
    4,176.40x = 8,787,700.32
  5. Step 5: Solve for x
    x = 8,787,700.32/4,176.40
  6. Step 6: Final answer
    x = 2,104.13

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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.