Home / 1,558.80-2,151.04-895.56

Finding the Fourth Proportional to 1,558.80, 2,151.04 and 895.56

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Solution

The fourth proportional to 1,558.80, 2,151.04 and 895.56 is: 1,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.80 : 2,151.04 = 895.56 : x
  2. Step 2: Convert to fraction form
    1,558.80/2,151.04 = 895.56/x
  3. Step 3: Cross multiply
    1,558.80x = 2,151.04 × 895.56
  4. Step 4: Simplify right side
    1,558.80x = 1,926,385.38
  5. Step 5: Solve for x
    x = 1,926,385.38/1,558.80
  6. Step 6: Final answer
    x = 1,235.81

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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.