Home / 1,548.20-2,136.63-958.76

Finding the Fourth Proportional to 1,548.20, 2,136.63 and 958.76

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Solution

The fourth proportional to 1,548.20, 2,136.63 and 958.76 is: 1,323.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.20 : 2,136.63 = 958.76 : x
  2. Step 2: Convert to fraction form
    1,548.20/2,136.63 = 958.76/x
  3. Step 3: Cross multiply
    1,548.20x = 2,136.63 × 958.76
  4. Step 4: Simplify right side
    1,548.20x = 2,048,515.38
  5. Step 5: Solve for x
    x = 2,048,515.38/1,548.20
  6. Step 6: Final answer
    x = 1,323.16

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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.