Home / 2,914.18-4,021.53-1,587.91

Finding the Fourth Proportional to 2,914.18, 4,021.53 and 1,587.91

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Solution

The fourth proportional to 2,914.18, 4,021.53 and 1,587.91 is: 2,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.18 : 4,021.53 = 1,587.91 : x
  2. Step 2: Convert to fraction form
    2,914.18/4,021.53 = 1,587.91/x
  3. Step 3: Cross multiply
    2,914.18x = 4,021.53 × 1,587.91
  4. Step 4: Simplify right side
    2,914.18x = 6,385,827.70
  5. Step 5: Solve for x
    x = 6,385,827.70/2,914.18
  6. Step 6: Final answer
    x = 2,191.29

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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.