Home / 2,946.47-4,065.66-1,687.23

Finding the Fourth Proportional to 2,946.47, 4,065.66 and 1,687.23

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Solution

The fourth proportional to 2,946.47, 4,065.66 and 1,687.23 is: 2,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.47 : 4,065.66 = 1,687.23 : x
  2. Step 2: Convert to fraction form
    2,946.47/4,065.66 = 1,687.23/x
  3. Step 3: Cross multiply
    2,946.47x = 4,065.66 × 1,687.23
  4. Step 4: Simplify right side
    2,946.47x = 6,859,703.52
  5. Step 5: Solve for x
    x = 6,859,703.52/2,946.47
  6. Step 6: Final answer
    x = 2,328.11

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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.