Home / 1,715.32-2,573.04-741.40

Finding the Fourth Proportional to 1,715.32, 2,573.04 and 741.40

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Solution

The fourth proportional to 1,715.32, 2,573.04 and 741.40 is: 1,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.32 : 2,573.04 = 741.40 : x
  2. Step 2: Convert to fraction form
    1,715.32/2,573.04 = 741.40/x
  3. Step 3: Cross multiply
    1,715.32x = 2,573.04 × 741.40
  4. Step 4: Simplify right side
    1,715.32x = 1,907,651.86
  5. Step 5: Solve for x
    x = 1,907,651.86/1,715.32
  6. Step 6: Final answer
    x = 1,112.13

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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.