Home / 2,557.08-3,528.60-1,438.01

Finding the Fourth Proportional to 2,557.08, 3,528.60 and 1,438.01

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Solution

The fourth proportional to 2,557.08, 3,528.60 and 1,438.01 is: 1,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.08 : 3,528.60 = 1,438.01 : x
  2. Step 2: Convert to fraction form
    2,557.08/3,528.60 = 1,438.01/x
  3. Step 3: Cross multiply
    2,557.08x = 3,528.60 × 1,438.01
  4. Step 4: Simplify right side
    2,557.08x = 5,074,162.09
  5. Step 5: Solve for x
    x = 5,074,162.09/2,557.08
  6. Step 6: Final answer
    x = 1,984.36

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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.