Home / 1,549.71-2,139.30-1,052.76

Finding the Fourth Proportional to 1,549.71, 2,139.30 and 1,052.76

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Solution

The fourth proportional to 1,549.71, 2,139.30 and 1,052.76 is: 1,453.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.71 : 2,139.30 = 1,052.76 : x
  2. Step 2: Convert to fraction form
    1,549.71/2,139.30 = 1,052.76/x
  3. Step 3: Cross multiply
    1,549.71x = 2,139.30 × 1,052.76
  4. Step 4: Simplify right side
    1,549.71x = 2,252,169.47
  5. Step 5: Solve for x
    x = 2,252,169.47/1,549.71
  6. Step 6: Final answer
    x = 1,453.28

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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.