Home / 1,547.44-2,133.75-1,129.18

Finding the Fourth Proportional to 1,547.44, 2,133.75 and 1,129.18

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Solution

The fourth proportional to 1,547.44, 2,133.75 and 1,129.18 is: 1,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.44 : 2,133.75 = 1,129.18 : x
  2. Step 2: Convert to fraction form
    1,547.44/2,133.75 = 1,129.18/x
  3. Step 3: Cross multiply
    1,547.44x = 2,133.75 × 1,129.18
  4. Step 4: Simplify right side
    1,547.44x = 2,409,387.83
  5. Step 5: Solve for x
    x = 2,409,387.83/1,547.44
  6. Step 6: Final answer
    x = 1,557.02

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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.