Home / 7,437.98-10,264.28-4,080.78

Finding the Fourth Proportional to 7,437.98, 10,264.28 and 4,080.78

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Solution

The fourth proportional to 7,437.98, 10,264.28 and 4,080.78 is: 5,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,437.98 : 10,264.28 = 4,080.78 : x
  2. Step 2: Convert to fraction form
    7,437.98/10,264.28 = 4,080.78/x
  3. Step 3: Cross multiply
    7,437.98x = 10,264.28 × 4,080.78
  4. Step 4: Simplify right side
    7,437.98x = 41,886,248.13
  5. Step 5: Solve for x
    x = 41,886,248.13/7,437.98
  6. Step 6: Final answer
    x = 5,631.40

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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.