Home / 1,547.73-2,127.98-1,378.08

Finding the Fourth Proportional to 1,547.73, 2,127.98 and 1,378.08

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Solution

The fourth proportional to 1,547.73, 2,127.98 and 1,378.08 is: 1,894.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.73 : 2,127.98 = 1,378.08 : x
  2. Step 2: Convert to fraction form
    1,547.73/2,127.98 = 1,378.08/x
  3. Step 3: Cross multiply
    1,547.73x = 2,127.98 × 1,378.08
  4. Step 4: Simplify right side
    1,547.73x = 2,932,530.12
  5. Step 5: Solve for x
    x = 2,932,530.12/1,547.73
  6. Step 6: Final answer
    x = 1,894.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.