Home / 2,547.16-3,818.45-1,620.11

Finding the Fourth Proportional to 2,547.16, 3,818.45 and 1,620.11

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Solution

The fourth proportional to 2,547.16, 3,818.45 and 1,620.11 is: 2,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.16 : 3,818.45 = 1,620.11 : x
  2. Step 2: Convert to fraction form
    2,547.16/3,818.45 = 1,620.11/x
  3. Step 3: Cross multiply
    2,547.16x = 3,818.45 × 1,620.11
  4. Step 4: Simplify right side
    2,547.16x = 6,186,322.63
  5. Step 5: Solve for x
    x = 6,186,322.63/2,547.16
  6. Step 6: Final answer
    x = 2,428.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.