Home / 1,531.30-2,296.95-1,012.90

Finding the Fourth Proportional to 1,531.30, 2,296.95 and 1,012.90

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Solution

The fourth proportional to 1,531.30, 2,296.95 and 1,012.90 is: 1,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.30 : 2,296.95 = 1,012.90 : x
  2. Step 2: Convert to fraction form
    1,531.30/2,296.95 = 1,012.90/x
  3. Step 3: Cross multiply
    1,531.30x = 2,296.95 × 1,012.90
  4. Step 4: Simplify right side
    1,531.30x = 2,326,580.66
  5. Step 5: Solve for x
    x = 2,326,580.66/1,531.30
  6. Step 6: Final answer
    x = 1,519.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.