Home / 2,082.40-2,869.76-1,491.91

Finding the Fourth Proportional to 2,082.40, 2,869.76 and 1,491.91

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Solution

The fourth proportional to 2,082.40, 2,869.76 and 1,491.91 is: 2,056.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.40 : 2,869.76 = 1,491.91 : x
  2. Step 2: Convert to fraction form
    2,082.40/2,869.76 = 1,491.91/x
  3. Step 3: Cross multiply
    2,082.40x = 2,869.76 × 1,491.91
  4. Step 4: Simplify right side
    2,082.40x = 4,281,423.64
  5. Step 5: Solve for x
    x = 4,281,423.64/2,082.40
  6. Step 6: Final answer
    x = 2,056.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.