Home / 4,315.19-6,471.41-1,392.81

Finding the Fourth Proportional to 4,315.19, 6,471.41 and 1,392.81

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Solution

The fourth proportional to 4,315.19, 6,471.41 and 1,392.81 is: 2,088.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,315.19 : 6,471.41 = 1,392.81 : x
  2. Step 2: Convert to fraction form
    4,315.19/6,471.41 = 1,392.81/x
  3. Step 3: Cross multiply
    4,315.19x = 6,471.41 × 1,392.81
  4. Step 4: Simplify right side
    4,315.19x = 9,013,437.60
  5. Step 5: Solve for x
    x = 9,013,437.60/4,315.19
  6. Step 6: Final answer
    x = 2,088.77

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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.