Home / 930.15-1,283.51-537.11

Finding the Fourth Proportional to 930.15, 1,283.51 and 537.11

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Solution

The fourth proportional to 930.15, 1,283.51 and 537.11 is: 741.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    930.15 : 1,283.51 = 537.11 : x
  2. Step 2: Convert to fraction form
    930.15/1,283.51 = 537.11/x
  3. Step 3: Cross multiply
    930.15x = 1,283.51 × 537.11
  4. Step 4: Simplify right side
    930.15x = 689,376.95
  5. Step 5: Solve for x
    x = 689,376.95/930.15
  6. Step 6: Final answer
    x = 741.15

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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.