Home / 7,378.74-10,182.42-4,191.84

Finding the Fourth Proportional to 7,378.74, 10,182.42 and 4,191.84

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Solution

The fourth proportional to 7,378.74, 10,182.42 and 4,191.84 is: 5,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.74 : 10,182.42 = 4,191.84 : x
  2. Step 2: Convert to fraction form
    7,378.74/10,182.42 = 4,191.84/x
  3. Step 3: Cross multiply
    7,378.74x = 10,182.42 × 4,191.84
  4. Step 4: Simplify right side
    7,378.74x = 42,683,075.45
  5. Step 5: Solve for x
    x = 42,683,075.45/7,378.74
  6. Step 6: Final answer
    x = 5,784.60

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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.