Home / 1,715.40-2,368.13-1,086.58

Finding the Fourth Proportional to 1,715.40, 2,368.13 and 1,086.58

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Solution

The fourth proportional to 1,715.40, 2,368.13 and 1,086.58 is: 1,500.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.40 : 2,368.13 = 1,086.58 : x
  2. Step 2: Convert to fraction form
    1,715.40/2,368.13 = 1,086.58/x
  3. Step 3: Cross multiply
    1,715.40x = 2,368.13 × 1,086.58
  4. Step 4: Simplify right side
    1,715.40x = 2,573,157.26
  5. Step 5: Solve for x
    x = 2,573,157.26/1,715.40
  6. Step 6: Final answer
    x = 1,500.04

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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.