Home / 5,075.83-7,005.47-3,187.69

Finding the Fourth Proportional to 5,075.83, 7,005.47 and 3,187.69

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Solution

The fourth proportional to 5,075.83, 7,005.47 and 3,187.69 is: 4,399.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.83 : 7,005.47 = 3,187.69 : x
  2. Step 2: Convert to fraction form
    5,075.83/7,005.47 = 3,187.69/x
  3. Step 3: Cross multiply
    5,075.83x = 7,005.47 × 3,187.69
  4. Step 4: Simplify right side
    5,075.83x = 22,331,266.66
  5. Step 5: Solve for x
    x = 22,331,266.66/5,075.83
  6. Step 6: Final answer
    x = 4,399.53

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Half scale
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Double scale
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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.