Home / 4,155.08-6,235.10-1,689.71

Finding the Fourth Proportional to 4,155.08, 6,235.10 and 1,689.71

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Solution

The fourth proportional to 4,155.08, 6,235.10 and 1,689.71 is: 2,535.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.08 : 6,235.10 = 1,689.71 : x
  2. Step 2: Convert to fraction form
    4,155.08/6,235.10 = 1,689.71/x
  3. Step 3: Cross multiply
    4,155.08x = 6,235.10 × 1,689.71
  4. Step 4: Simplify right side
    4,155.08x = 10,535,510.82
  5. Step 5: Solve for x
    x = 10,535,510.82/4,155.08
  6. Step 6: Final answer
    x = 2,535.57

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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.