Home / 4,780.27-6,599.95-2,990.45

Finding the Fourth Proportional to 4,780.27, 6,599.95 and 2,990.45

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Solution

The fourth proportional to 4,780.27, 6,599.95 and 2,990.45 is: 4,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.27 : 6,599.95 = 2,990.45 : x
  2. Step 2: Convert to fraction form
    4,780.27/6,599.95 = 2,990.45/x
  3. Step 3: Cross multiply
    4,780.27x = 6,599.95 × 2,990.45
  4. Step 4: Simplify right side
    4,780.27x = 19,736,829.50
  5. Step 5: Solve for x
    x = 19,736,829.50/4,780.27
  6. Step 6: Final answer
    x = 4,128.81

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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.