Home / 5,434.90-8,140.20-4,341.40

Finding the Fourth Proportional to 5,434.90, 8,140.20 and 4,341.40

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Solution

The fourth proportional to 5,434.90, 8,140.20 and 4,341.40 is: 6,502.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.90 : 8,140.20 = 4,341.40 : x
  2. Step 2: Convert to fraction form
    5,434.90/8,140.20 = 4,341.40/x
  3. Step 3: Cross multiply
    5,434.90x = 8,140.20 × 4,341.40
  4. Step 4: Simplify right side
    5,434.90x = 35,339,864.28
  5. Step 5: Solve for x
    x = 35,339,864.28/5,434.90
  6. Step 6: Final answer
    x = 6,502.39

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1.5x scale

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.