Home / 1,547.10-2,135.97-1,352.70

Finding the Fourth Proportional to 1,547.10, 2,135.97 and 1,352.70

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Solution

The fourth proportional to 1,547.10, 2,135.97 and 1,352.70 is: 1,867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.10 : 2,135.97 = 1,352.70 : x
  2. Step 2: Convert to fraction form
    1,547.10/2,135.97 = 1,352.70/x
  3. Step 3: Cross multiply
    1,547.10x = 2,135.97 × 1,352.70
  4. Step 4: Simplify right side
    1,547.10x = 2,889,326.62
  5. Step 5: Solve for x
    x = 2,889,326.62/1,547.10
  6. Step 6: Final answer
    x = 1,867.58

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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.