Home / 1,826.87-2,740.47-510.71

Finding the Fourth Proportional to 1,826.87, 2,740.47 and 510.71

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Solution

The fourth proportional to 1,826.87, 2,740.47 and 510.71 is: 766.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.87 : 2,740.47 = 510.71 : x
  2. Step 2: Convert to fraction form
    1,826.87/2,740.47 = 510.71/x
  3. Step 3: Cross multiply
    1,826.87x = 2,740.47 × 510.71
  4. Step 4: Simplify right side
    1,826.87x = 1,399,571.73
  5. Step 5: Solve for x
    x = 1,399,571.73/1,826.87
  6. Step 6: Final answer
    x = 766.11

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1.5x scale

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.