Home / 1,448.28-2,159.06-1,331.64

Finding the Fourth Proportional to 1,448.28, 2,159.06 and 1,331.64

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Solution

The fourth proportional to 1,448.28, 2,159.06 and 1,331.64 is: 1,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.28 : 2,159.06 = 1,331.64 : x
  2. Step 2: Convert to fraction form
    1,448.28/2,159.06 = 1,331.64/x
  3. Step 3: Cross multiply
    1,448.28x = 2,159.06 × 1,331.64
  4. Step 4: Simplify right side
    1,448.28x = 2,875,084.00
  5. Step 5: Solve for x
    x = 2,875,084.00/1,448.28
  6. Step 6: Final answer
    x = 1,985.17

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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.