Home / 1,319.14-1,974.93-885.52

Finding the Fourth Proportional to 1,319.14, 1,974.93 and 885.52

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Solution

The fourth proportional to 1,319.14, 1,974.93 and 885.52 is: 1,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319.14 : 1,974.93 = 885.52 : x
  2. Step 2: Convert to fraction form
    1,319.14/1,974.93 = 885.52/x
  3. Step 3: Cross multiply
    1,319.14x = 1,974.93 × 885.52
  4. Step 4: Simplify right side
    1,319.14x = 1,748,840.01
  5. Step 5: Solve for x
    x = 1,748,840.01/1,319.14
  6. Step 6: Final answer
    x = 1,325.74

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1.5x scale

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.