Home / 2,475.15-3,415.72-1,356.08

Finding the Fourth Proportional to 2,475.15, 3,415.72 and 1,356.08

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Solution

The fourth proportional to 2,475.15, 3,415.72 and 1,356.08 is: 1,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.15 : 3,415.72 = 1,356.08 : x
  2. Step 2: Convert to fraction form
    2,475.15/3,415.72 = 1,356.08/x
  3. Step 3: Cross multiply
    2,475.15x = 3,415.72 × 1,356.08
  4. Step 4: Simplify right side
    2,475.15x = 4,631,989.58
  5. Step 5: Solve for x
    x = 4,631,989.58/2,475.15
  6. Step 6: Final answer
    x = 1,871.40

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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.