Home / 1,556.12-2,334.45-460.55

Finding the Fourth Proportional to 1,556.12, 2,334.45 and 460.55

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Solution

The fourth proportional to 1,556.12, 2,334.45 and 460.55 is: 690.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.12 : 2,334.45 = 460.55 : x
  2. Step 2: Convert to fraction form
    1,556.12/2,334.45 = 460.55/x
  3. Step 3: Cross multiply
    1,556.12x = 2,334.45 × 460.55
  4. Step 4: Simplify right side
    1,556.12x = 1,075,130.95
  5. Step 5: Solve for x
    x = 1,075,130.95/1,556.12
  6. Step 6: Final answer
    x = 690.90

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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.