Home / 2,946.10-4,065.42-1,687.16

Finding the Fourth Proportional to 2,946.10, 4,065.42 and 1,687.16

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Solution

The fourth proportional to 2,946.10, 4,065.42 and 1,687.16 is: 2,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.10 : 4,065.42 = 1,687.16 : x
  2. Step 2: Convert to fraction form
    2,946.10/4,065.42 = 1,687.16/x
  3. Step 3: Cross multiply
    2,946.10x = 4,065.42 × 1,687.16
  4. Step 4: Simplify right side
    2,946.10x = 6,859,014.01
  5. Step 5: Solve for x
    x = 6,859,014.01/2,946.10
  6. Step 6: Final answer
    x = 2,328.17

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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.