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Finding the Fourth Proportional to 5,386.04, 8,079.04 and 1,490.44

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Solution

The fourth proportional to 5,386.04, 8,079.04 and 1,490.44 is: 2,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.04 : 8,079.04 = 1,490.44 : x
  2. Step 2: Convert to fraction form
    5,386.04/8,079.04 = 1,490.44/x
  3. Step 3: Cross multiply
    5,386.04x = 8,079.04 × 1,490.44
  4. Step 4: Simplify right side
    5,386.04x = 12,041,324.38
  5. Step 5: Solve for x
    x = 12,041,324.38/5,386.04
  6. Step 6: Final answer
    x = 2,235.65

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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.