Home / 1,812.55-2,500.41-1,148.35

Finding the Fourth Proportional to 1,812.55, 2,500.41 and 1,148.35

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Solution

The fourth proportional to 1,812.55, 2,500.41 and 1,148.35 is: 1,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.55 : 2,500.41 = 1,148.35 : x
  2. Step 2: Convert to fraction form
    1,812.55/2,500.41 = 1,148.35/x
  3. Step 3: Cross multiply
    1,812.55x = 2,500.41 × 1,148.35
  4. Step 4: Simplify right side
    1,812.55x = 2,871,342.11
  5. Step 5: Solve for x
    x = 2,871,342.11/1,812.55
  6. Step 6: Final answer
    x = 1,584.15

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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.