Home / 1,696.60-2,547.44-1,385.20

Finding the Fourth Proportional to 1,696.60, 2,547.44 and 1,385.20

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Solution

The fourth proportional to 1,696.60, 2,547.44 and 1,385.20 is: 2,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.60 : 2,547.44 = 1,385.20 : x
  2. Step 2: Convert to fraction form
    1,696.60/2,547.44 = 1,385.20/x
  3. Step 3: Cross multiply
    1,696.60x = 2,547.44 × 1,385.20
  4. Step 4: Simplify right side
    1,696.60x = 3,528,713.89
  5. Step 5: Solve for x
    x = 3,528,713.89/1,696.60
  6. Step 6: Final answer
    x = 2,079.87

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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.