Home / 2,557.82-3,815.93-2,319.08

Finding the Fourth Proportional to 2,557.82, 3,815.93 and 2,319.08

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Solution

The fourth proportional to 2,557.82, 3,815.93 and 2,319.08 is: 3,459.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.82 : 3,815.93 = 2,319.08 : x
  2. Step 2: Convert to fraction form
    2,557.82/3,815.93 = 2,319.08/x
  3. Step 3: Cross multiply
    2,557.82x = 3,815.93 × 2,319.08
  4. Step 4: Simplify right side
    2,557.82x = 8,849,444.89
  5. Step 5: Solve for x
    x = 8,849,444.89/2,557.82
  6. Step 6: Final answer
    x = 3,459.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.