Home / 1,577.79-2,175.42-1,437.32

Finding the Fourth Proportional to 1,577.79, 2,175.42 and 1,437.32

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Solution

The fourth proportional to 1,577.79, 2,175.42 and 1,437.32 is: 1,981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.79 : 2,175.42 = 1,437.32 : x
  2. Step 2: Convert to fraction form
    1,577.79/2,175.42 = 1,437.32/x
  3. Step 3: Cross multiply
    1,577.79x = 2,175.42 × 1,437.32
  4. Step 4: Simplify right side
    1,577.79x = 3,126,785.50
  5. Step 5: Solve for x
    x = 3,126,785.50/1,577.79
  6. Step 6: Final answer
    x = 1,981.75

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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.