Home / 7,114.45-9,818.93-3,970.84

Finding the Fourth Proportional to 7,114.45, 9,818.93 and 3,970.84

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Solution

The fourth proportional to 7,114.45, 9,818.93 and 3,970.84 is: 5,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114.45 : 9,818.93 = 3,970.84 : x
  2. Step 2: Convert to fraction form
    7,114.45/9,818.93 = 3,970.84/x
  3. Step 3: Cross multiply
    7,114.45x = 9,818.93 × 3,970.84
  4. Step 4: Simplify right side
    7,114.45x = 38,989,400.00
  5. Step 5: Solve for x
    x = 38,989,400.00/7,114.45
  6. Step 6: Final answer
    x = 5,480.31

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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.