Home / 1,442.04-1,989.87-882.66

Finding the Fourth Proportional to 1,442.04, 1,989.87 and 882.66

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Solution

The fourth proportional to 1,442.04, 1,989.87 and 882.66 is: 1,217.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.04 : 1,989.87 = 882.66 : x
  2. Step 2: Convert to fraction form
    1,442.04/1,989.87 = 882.66/x
  3. Step 3: Cross multiply
    1,442.04x = 1,989.87 × 882.66
  4. Step 4: Simplify right side
    1,442.04x = 1,756,382.81
  5. Step 5: Solve for x
    x = 1,756,382.81/1,442.04
  6. Step 6: Final answer
    x = 1,217.99

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1.5x scale

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.