Home / 7,075.28-10,612.20-1,881.68

Finding the Fourth Proportional to 7,075.28, 10,612.20 and 1,881.68

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Solution

The fourth proportional to 7,075.28, 10,612.20 and 1,881.68 is: 2,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.28 : 10,612.20 = 1,881.68 : x
  2. Step 2: Convert to fraction form
    7,075.28/10,612.20 = 1,881.68/x
  3. Step 3: Cross multiply
    7,075.28x = 10,612.20 × 1,881.68
  4. Step 4: Simplify right side
    7,075.28x = 19,968,764.50
  5. Step 5: Solve for x
    x = 19,968,764.50/7,075.28
  6. Step 6: Final answer
    x = 2,822.33

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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.