Home / 1,547.35-2,134.60-1,127.05

Finding the Fourth Proportional to 1,547.35, 2,134.60 and 1,127.05

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Solution

The fourth proportional to 1,547.35, 2,134.60 and 1,127.05 is: 1,554.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.35 : 2,134.60 = 1,127.05 : x
  2. Step 2: Convert to fraction form
    1,547.35/2,134.60 = 1,127.05/x
  3. Step 3: Cross multiply
    1,547.35x = 2,134.60 × 1,127.05
  4. Step 4: Simplify right side
    1,547.35x = 2,405,800.93
  5. Step 5: Solve for x
    x = 2,405,800.93/1,547.35
  6. Step 6: Final answer
    x = 1,554.79

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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.