Home / 1,504.60-2,256.90-986.20

Finding the Fourth Proportional to 1,504.60, 2,256.90 and 986.20

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Solution

The fourth proportional to 1,504.60, 2,256.90 and 986.20 is: 1,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504.60 : 2,256.90 = 986.20 : x
  2. Step 2: Convert to fraction form
    1,504.60/2,256.90 = 986.20/x
  3. Step 3: Cross multiply
    1,504.60x = 2,256.90 × 986.20
  4. Step 4: Simplify right side
    1,504.60x = 2,225,754.78
  5. Step 5: Solve for x
    x = 2,225,754.78/1,504.60
  6. Step 6: Final answer
    x = 1,479.30

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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.