Home / 1,548.02-2,129.52-1,358.12

Finding the Fourth Proportional to 1,548.02, 2,129.52 and 1,358.12

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Solution

The fourth proportional to 1,548.02, 2,129.52 and 1,358.12 is: 1,868.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.02 : 2,129.52 = 1,358.12 : x
  2. Step 2: Convert to fraction form
    1,548.02/2,129.52 = 1,358.12/x
  3. Step 3: Cross multiply
    1,548.02x = 2,129.52 × 1,358.12
  4. Step 4: Simplify right side
    1,548.02x = 2,892,143.70
  5. Step 5: Solve for x
    x = 2,892,143.70/1,548.02
  6. Step 6: Final answer
    x = 1,868.29

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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.