Home / 1,575.18-2,173.23-1,077.57

Finding the Fourth Proportional to 1,575.18, 2,173.23 and 1,077.57

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Solution

The fourth proportional to 1,575.18, 2,173.23 and 1,077.57 is: 1,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.18 : 2,173.23 = 1,077.57 : x
  2. Step 2: Convert to fraction form
    1,575.18/2,173.23 = 1,077.57/x
  3. Step 3: Cross multiply
    1,575.18x = 2,173.23 × 1,077.57
  4. Step 4: Simplify right side
    1,575.18x = 2,341,807.45
  5. Step 5: Solve for x
    x = 2,341,807.45/1,575.18
  6. Step 6: Final answer
    x = 1,486.69

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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.