Home / 2,752.48-4,130.45-1,438.60

Finding the Fourth Proportional to 2,752.48, 4,130.45 and 1,438.60

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Solution

The fourth proportional to 2,752.48, 4,130.45 and 1,438.60 is: 2,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.48 : 4,130.45 = 1,438.60 : x
  2. Step 2: Convert to fraction form
    2,752.48/4,130.45 = 1,438.60/x
  3. Step 3: Cross multiply
    2,752.48x = 4,130.45 × 1,438.60
  4. Step 4: Simplify right side
    2,752.48x = 5,942,059.23
  5. Step 5: Solve for x
    x = 5,942,059.23/2,752.48
  6. Step 6: Final answer
    x = 2,158.80

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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.