Home / 2,557.08-3,528.90-1,509.12

Finding the Fourth Proportional to 2,557.08, 3,528.90 and 1,509.12

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Solution

The fourth proportional to 2,557.08, 3,528.90 and 1,509.12 is: 2,082.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.08 : 3,528.90 = 1,509.12 : x
  2. Step 2: Convert to fraction form
    2,557.08/3,528.90 = 1,509.12/x
  3. Step 3: Cross multiply
    2,557.08x = 3,528.90 × 1,509.12
  4. Step 4: Simplify right side
    2,557.08x = 5,325,533.57
  5. Step 5: Solve for x
    x = 5,325,533.57/2,557.08
  6. Step 6: Final answer
    x = 2,082.66

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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.