Home / 7,778.02-10,733.28-4,420.39

Finding the Fourth Proportional to 7,778.02, 10,733.28 and 4,420.39

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Solution

The fourth proportional to 7,778.02, 10,733.28 and 4,420.39 is: 6,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.02 : 10,733.28 = 4,420.39 : x
  2. Step 2: Convert to fraction form
    7,778.02/10,733.28 = 4,420.39/x
  3. Step 3: Cross multiply
    7,778.02x = 10,733.28 × 4,420.39
  4. Step 4: Simplify right side
    7,778.02x = 47,445,283.58
  5. Step 5: Solve for x
    x = 47,445,283.58/7,778.02
  6. Step 6: Final answer
    x = 6,099.92

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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.