Home / 2,599.48-3,587.28-1,420.64

Finding the Fourth Proportional to 2,599.48, 3,587.28 and 1,420.64

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Solution

The fourth proportional to 2,599.48, 3,587.28 and 1,420.64 is: 1,960.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.48 : 3,587.28 = 1,420.64 : x
  2. Step 2: Convert to fraction form
    2,599.48/3,587.28 = 1,420.64/x
  3. Step 3: Cross multiply
    2,599.48x = 3,587.28 × 1,420.64
  4. Step 4: Simplify right side
    2,599.48x = 5,096,233.46
  5. Step 5: Solve for x
    x = 5,096,233.46/2,599.48
  6. Step 6: Final answer
    x = 1,960.48

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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.