Home / 1,500.02-2,069.89-870.66

Finding the Fourth Proportional to 1,500.02, 2,069.89 and 870.66

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Solution

The fourth proportional to 1,500.02, 2,069.89 and 870.66 is: 1,201.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.02 : 2,069.89 = 870.66 : x
  2. Step 2: Convert to fraction form
    1,500.02/2,069.89 = 870.66/x
  3. Step 3: Cross multiply
    1,500.02x = 2,069.89 × 870.66
  4. Step 4: Simplify right side
    1,500.02x = 1,802,170.43
  5. Step 5: Solve for x
    x = 1,802,170.43/1,500.02
  6. Step 6: Final answer
    x = 1,201.43

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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.