Home / 2,510.87-3,464.91-1,391.76

Finding the Fourth Proportional to 2,510.87, 3,464.91 and 1,391.76

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Solution

The fourth proportional to 2,510.87, 3,464.91 and 1,391.76 is: 1,920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,510.87 : 3,464.91 = 1,391.76 : x
  2. Step 2: Convert to fraction form
    2,510.87/3,464.91 = 1,391.76/x
  3. Step 3: Cross multiply
    2,510.87x = 3,464.91 × 1,391.76
  4. Step 4: Simplify right side
    2,510.87x = 4,822,323.14
  5. Step 5: Solve for x
    x = 4,822,323.14/2,510.87
  6. Step 6: Final answer
    x = 1,920.58

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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.