Home / 5,427.02-8,140.70-1,869.10

Finding the Fourth Proportional to 5,427.02, 8,140.70 and 1,869.10

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Solution

The fourth proportional to 5,427.02, 8,140.70 and 1,869.10 is: 2,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.02 : 8,140.70 = 1,869.10 : x
  2. Step 2: Convert to fraction form
    5,427.02/8,140.70 = 1,869.10/x
  3. Step 3: Cross multiply
    5,427.02x = 8,140.70 × 1,869.10
  4. Step 4: Simplify right side
    5,427.02x = 15,215,802.72
  5. Step 5: Solve for x
    x = 15,215,802.72/5,427.02
  6. Step 6: Final answer
    x = 2,803.71

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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.