Home / 5,445.48-8,166.66-2,981.40

Finding the Fourth Proportional to 5,445.48, 8,166.66 and 2,981.40

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Solution

The fourth proportional to 5,445.48, 8,166.66 and 2,981.40 is: 4,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.48 : 8,166.66 = 2,981.40 : x
  2. Step 2: Convert to fraction form
    5,445.48/8,166.66 = 2,981.40/x
  3. Step 3: Cross multiply
    5,445.48x = 8,166.66 × 2,981.40
  4. Step 4: Simplify right side
    5,445.48x = 24,348,080.12
  5. Step 5: Solve for x
    x = 24,348,080.12/5,445.48
  6. Step 6: Final answer
    x = 4,471.25

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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.