Home / 1,432.36-2,140.36-1,019.28

Finding the Fourth Proportional to 1,432.36, 2,140.36 and 1,019.28

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Solution

The fourth proportional to 1,432.36, 2,140.36 and 1,019.28 is: 1,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.36 : 2,140.36 = 1,019.28 : x
  2. Step 2: Convert to fraction form
    1,432.36/2,140.36 = 1,019.28/x
  3. Step 3: Cross multiply
    1,432.36x = 2,140.36 × 1,019.28
  4. Step 4: Simplify right side
    1,432.36x = 2,181,626.14
  5. Step 5: Solve for x
    x = 2,181,626.14/1,432.36
  6. Step 6: Final answer
    x = 1,523.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.