Home / 2,557.90-3,527.58-1,812.16

Finding the Fourth Proportional to 2,557.90, 3,527.58 and 1,812.16

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Solution

The fourth proportional to 2,557.90, 3,527.58 and 1,812.16 is: 2,499.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.90 : 3,527.58 = 1,812.16 : x
  2. Step 2: Convert to fraction form
    2,557.90/3,527.58 = 1,812.16/x
  3. Step 3: Cross multiply
    2,557.90x = 3,527.58 × 1,812.16
  4. Step 4: Simplify right side
    2,557.90x = 6,392,539.37
  5. Step 5: Solve for x
    x = 6,392,539.37/2,557.90
  6. Step 6: Final answer
    x = 2,499.14

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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.