Home / 5,075.28-7,612.88-1,788.34

Finding the Fourth Proportional to 5,075.28, 7,612.88 and 1,788.34

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Solution

The fourth proportional to 5,075.28, 7,612.88 and 1,788.34 is: 2,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.28 : 7,612.88 = 1,788.34 : x
  2. Step 2: Convert to fraction form
    5,075.28/7,612.88 = 1,788.34/x
  3. Step 3: Cross multiply
    5,075.28x = 7,612.88 × 1,788.34
  4. Step 4: Simplify right side
    5,075.28x = 13,614,417.82
  5. Step 5: Solve for x
    x = 13,614,417.82/5,075.28
  6. Step 6: Final answer
    x = 2,682.50

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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.