Home / 5,409.17-8,114.15-1,898.78

Finding the Fourth Proportional to 5,409.17, 8,114.15 and 1,898.78

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Solution

The fourth proportional to 5,409.17, 8,114.15 and 1,898.78 is: 2,848.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.17 : 8,114.15 = 1,898.78 : x
  2. Step 2: Convert to fraction form
    5,409.17/8,114.15 = 1,898.78/x
  3. Step 3: Cross multiply
    5,409.17x = 8,114.15 × 1,898.78
  4. Step 4: Simplify right side
    5,409.17x = 15,406,985.74
  5. Step 5: Solve for x
    x = 15,406,985.74/5,409.17
  6. Step 6: Final answer
    x = 2,848.31

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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.