Home / 1,579.80-2,356.17-1,547.40

Finding the Fourth Proportional to 1,579.80, 2,356.17 and 1,547.40

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Solution

The fourth proportional to 1,579.80, 2,356.17 and 1,547.40 is: 2,307.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.80 : 2,356.17 = 1,547.40 : x
  2. Step 2: Convert to fraction form
    1,579.80/2,356.17 = 1,547.40/x
  3. Step 3: Cross multiply
    1,579.80x = 2,356.17 × 1,547.40
  4. Step 4: Simplify right side
    1,579.80x = 3,645,937.46
  5. Step 5: Solve for x
    x = 3,645,937.46/1,579.80
  6. Step 6: Final answer
    x = 2,307.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.