Home / 2,807.08-3,872.58-1,875.88

Finding the Fourth Proportional to 2,807.08, 3,872.58 and 1,875.88

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Solution

The fourth proportional to 2,807.08, 3,872.58 and 1,875.88 is: 2,587.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.08 : 3,872.58 = 1,875.88 : x
  2. Step 2: Convert to fraction form
    2,807.08/3,872.58 = 1,875.88/x
  3. Step 3: Cross multiply
    2,807.08x = 3,872.58 × 1,875.88
  4. Step 4: Simplify right side
    2,807.08x = 7,264,495.37
  5. Step 5: Solve for x
    x = 7,264,495.37/2,807.08
  6. Step 6: Final answer
    x = 2,587.92

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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.