Home / 1,547.70-2,316.15-1,083.30

Finding the Fourth Proportional to 1,547.70, 2,316.15 and 1,083.30

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Solution

The fourth proportional to 1,547.70, 2,316.15 and 1,083.30 is: 1,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.70 : 2,316.15 = 1,083.30 : x
  2. Step 2: Convert to fraction form
    1,547.70/2,316.15 = 1,083.30/x
  3. Step 3: Cross multiply
    1,547.70x = 2,316.15 × 1,083.30
  4. Step 4: Simplify right side
    1,547.70x = 2,509,085.30
  5. Step 5: Solve for x
    x = 2,509,085.30/1,547.70
  6. Step 6: Final answer
    x = 1,621.17

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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.