Home / 1,256.19-1,731.02-1,036.68

Finding the Fourth Proportional to 1,256.19, 1,731.02 and 1,036.68

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Solution

The fourth proportional to 1,256.19, 1,731.02 and 1,036.68 is: 1,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256.19 : 1,731.02 = 1,036.68 : x
  2. Step 2: Convert to fraction form
    1,256.19/1,731.02 = 1,036.68/x
  3. Step 3: Cross multiply
    1,256.19x = 1,731.02 × 1,036.68
  4. Step 4: Simplify right side
    1,256.19x = 1,794,508.63
  5. Step 5: Solve for x
    x = 1,794,508.63/1,256.19
  6. Step 6: Final answer
    x = 1,428.53

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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.