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Finding the Fourth Proportional to 1,547.23, 2,135.16 and 884.08

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Solution

The fourth proportional to 1,547.23, 2,135.16 and 884.08 is: 1,220.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.23 : 2,135.16 = 884.08 : x
  2. Step 2: Convert to fraction form
    1,547.23/2,135.16 = 884.08/x
  3. Step 3: Cross multiply
    1,547.23x = 2,135.16 × 884.08
  4. Step 4: Simplify right side
    1,547.23x = 1,887,646.91
  5. Step 5: Solve for x
    x = 1,887,646.91/1,547.23
  6. Step 6: Final answer
    x = 1,220.02

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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.