Home / 5,014.78-6,920.10-2,776.53

Finding the Fourth Proportional to 5,014.78, 6,920.10 and 2,776.53

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Solution

The fourth proportional to 5,014.78, 6,920.10 and 2,776.53 is: 3,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,014.78 : 6,920.10 = 2,776.53 : x
  2. Step 2: Convert to fraction form
    5,014.78/6,920.10 = 2,776.53/x
  3. Step 3: Cross multiply
    5,014.78x = 6,920.10 × 2,776.53
  4. Step 4: Simplify right side
    5,014.78x = 19,213,852.28
  5. Step 5: Solve for x
    x = 19,213,852.28/5,014.78
  6. Step 6: Final answer
    x = 3,831.45

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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.