Home / 5,490.79-8,235.27-1,541.70

Finding the Fourth Proportional to 5,490.79, 8,235.27 and 1,541.70

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Solution

The fourth proportional to 5,490.79, 8,235.27 and 1,541.70 is: 2,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.79 : 8,235.27 = 1,541.70 : x
  2. Step 2: Convert to fraction form
    5,490.79/8,235.27 = 1,541.70/x
  3. Step 3: Cross multiply
    5,490.79x = 8,235.27 × 1,541.70
  4. Step 4: Simplify right side
    5,490.79x = 12,696,315.76
  5. Step 5: Solve for x
    x = 12,696,315.76/5,490.79
  6. Step 6: Final answer
    x = 2,312.29

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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.