Home / 1,715.27-2,572.50-740.84

Finding the Fourth Proportional to 1,715.27, 2,572.50 and 740.84

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Solution

The fourth proportional to 1,715.27, 2,572.50 and 740.84 is: 1,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.27 : 2,572.50 = 740.84 : x
  2. Step 2: Convert to fraction form
    1,715.27/2,572.50 = 740.84/x
  3. Step 3: Cross multiply
    1,715.27x = 2,572.50 × 740.84
  4. Step 4: Simplify right side
    1,715.27x = 1,905,804.91
  5. Step 5: Solve for x
    x = 1,905,804.91/1,715.27
  6. Step 6: Final answer
    x = 1,111.08

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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.