Home / 1,865.94-2,574.66-1,306.20

Finding the Fourth Proportional to 1,865.94, 2,574.66 and 1,306.20

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Solution

The fourth proportional to 1,865.94, 2,574.66 and 1,306.20 is: 1,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.94 : 2,574.66 = 1,306.20 : x
  2. Step 2: Convert to fraction form
    1,865.94/2,574.66 = 1,306.20/x
  3. Step 3: Cross multiply
    1,865.94x = 2,574.66 × 1,306.20
  4. Step 4: Simplify right side
    1,865.94x = 3,363,024.53
  5. Step 5: Solve for x
    x = 3,363,024.53/1,865.94
  6. Step 6: Final answer
    x = 1,802.33

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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.