Home / 7,075.60-9,764.04-3,931.96

Finding the Fourth Proportional to 7,075.60, 9,764.04 and 3,931.96

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Solution

The fourth proportional to 7,075.60, 9,764.04 and 3,931.96 is: 5,425.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.60 : 9,764.04 = 3,931.96 : x
  2. Step 2: Convert to fraction form
    7,075.60/9,764.04 = 3,931.96/x
  3. Step 3: Cross multiply
    7,075.60x = 9,764.04 × 3,931.96
  4. Step 4: Simplify right side
    7,075.60x = 38,391,814.72
  5. Step 5: Solve for x
    x = 38,391,814.72/7,075.60
  6. Step 6: Final answer
    x = 5,425.94

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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.