Home / 4,685.65-7,030.52-2,220.49

Finding the Fourth Proportional to 4,685.65, 7,030.52 and 2,220.49

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Solution

The fourth proportional to 4,685.65, 7,030.52 and 2,220.49 is: 3,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.65 : 7,030.52 = 2,220.49 : x
  2. Step 2: Convert to fraction form
    4,685.65/7,030.52 = 2,220.49/x
  3. Step 3: Cross multiply
    4,685.65x = 7,030.52 × 2,220.49
  4. Step 4: Simplify right side
    4,685.65x = 15,611,191.84
  5. Step 5: Solve for x
    x = 15,611,191.84/4,685.65
  6. Step 6: Final answer
    x = 3,331.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.