Home / 2,125.32-2,928.96-1,534.86

Finding the Fourth Proportional to 2,125.32, 2,928.96 and 1,534.86

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Solution

The fourth proportional to 2,125.32, 2,928.96 and 1,534.86 is: 2,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.32 : 2,928.96 = 1,534.86 : x
  2. Step 2: Convert to fraction form
    2,125.32/2,928.96 = 1,534.86/x
  3. Step 3: Cross multiply
    2,125.32x = 2,928.96 × 1,534.86
  4. Step 4: Simplify right side
    2,125.32x = 4,495,543.55
  5. Step 5: Solve for x
    x = 4,495,543.55/2,125.32
  6. Step 6: Final answer
    x = 2,115.23

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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.