Home / 2,403.48-3,315.42-1,507.08

Finding the Fourth Proportional to 2,403.48, 3,315.42 and 1,507.08

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Solution

The fourth proportional to 2,403.48, 3,315.42 and 1,507.08 is: 2,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.48 : 3,315.42 = 1,507.08 : x
  2. Step 2: Convert to fraction form
    2,403.48/3,315.42 = 1,507.08/x
  3. Step 3: Cross multiply
    2,403.48x = 3,315.42 × 1,507.08
  4. Step 4: Simplify right side
    2,403.48x = 4,996,603.17
  5. Step 5: Solve for x
    x = 4,996,603.17/2,403.48
  6. Step 6: Final answer
    x = 2,078.90

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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.