Home / 1,531.96-2,114.75-934.46

Finding the Fourth Proportional to 1,531.96, 2,114.75 and 934.46

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Solution

The fourth proportional to 1,531.96, 2,114.75 and 934.46 is: 1,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.96 : 2,114.75 = 934.46 : x
  2. Step 2: Convert to fraction form
    1,531.96/2,114.75 = 934.46/x
  3. Step 3: Cross multiply
    1,531.96x = 2,114.75 × 934.46
  4. Step 4: Simplify right side
    1,531.96x = 1,976,148.98
  5. Step 5: Solve for x
    x = 1,976,148.98/1,531.96
  6. Step 6: Final answer
    x = 1,289.95

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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.