Home / 1,851.12-2,574.99-1,815.48

Finding the Fourth Proportional to 1,851.12, 2,574.99 and 1,815.48

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Solution

The fourth proportional to 1,851.12, 2,574.99 and 1,815.48 is: 2,525.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.12 : 2,574.99 = 1,815.48 : x
  2. Step 2: Convert to fraction form
    1,851.12/2,574.99 = 1,815.48/x
  3. Step 3: Cross multiply
    1,851.12x = 2,574.99 × 1,815.48
  4. Step 4: Simplify right side
    1,851.12x = 4,674,842.85
  5. Step 5: Solve for x
    x = 4,674,842.85/1,851.12
  6. Step 6: Final answer
    x = 2,525.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.