Home / 1,948.60-2,923.80-1,025.20

Finding the Fourth Proportional to 1,948.60, 2,923.80 and 1,025.20

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Solution

The fourth proportional to 1,948.60, 2,923.80 and 1,025.20 is: 1,538.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.60 : 2,923.80 = 1,025.20 : x
  2. Step 2: Convert to fraction form
    1,948.60/2,923.80 = 1,025.20/x
  3. Step 3: Cross multiply
    1,948.60x = 2,923.80 × 1,025.20
  4. Step 4: Simplify right side
    1,948.60x = 2,997,479.76
  5. Step 5: Solve for x
    x = 2,997,479.76/1,948.60
  6. Step 6: Final answer
    x = 1,538.27

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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.