Home / 1,575.07-2,174.63-1,077.53

Finding the Fourth Proportional to 1,575.07, 2,174.63 and 1,077.53

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Solution

The fourth proportional to 1,575.07, 2,174.63 and 1,077.53 is: 1,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.07 : 2,174.63 = 1,077.53 : x
  2. Step 2: Convert to fraction form
    1,575.07/2,174.63 = 1,077.53/x
  3. Step 3: Cross multiply
    1,575.07x = 2,174.63 × 1,077.53
  4. Step 4: Simplify right side
    1,575.07x = 2,343,212.80
  5. Step 5: Solve for x
    x = 2,343,212.80/1,575.07
  6. Step 6: Final answer
    x = 1,487.69

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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.