Home / 1,567.50-2,164.59-1,155.66

Finding the Fourth Proportional to 1,567.50, 2,164.59 and 1,155.66

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Solution

The fourth proportional to 1,567.50, 2,164.59 and 1,155.66 is: 1,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.50 : 2,164.59 = 1,155.66 : x
  2. Step 2: Convert to fraction form
    1,567.50/2,164.59 = 1,155.66/x
  3. Step 3: Cross multiply
    1,567.50x = 2,164.59 × 1,155.66
  4. Step 4: Simplify right side
    1,567.50x = 2,501,530.08
  5. Step 5: Solve for x
    x = 2,501,530.08/1,567.50
  6. Step 6: Final answer
    x = 1,595.87

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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.