Home / 2,904.83-4,008.65-1,578.51

Finding the Fourth Proportional to 2,904.83, 4,008.65 and 1,578.51

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Solution

The fourth proportional to 2,904.83, 4,008.65 and 1,578.51 is: 2,178.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.83 : 4,008.65 = 1,578.51 : x
  2. Step 2: Convert to fraction form
    2,904.83/4,008.65 = 1,578.51/x
  3. Step 3: Cross multiply
    2,904.83x = 4,008.65 × 1,578.51
  4. Step 4: Simplify right side
    2,904.83x = 6,327,686.22
  5. Step 5: Solve for x
    x = 6,327,686.22/2,904.83
  6. Step 6: Final answer
    x = 2,178.34

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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.