Home / 2,403.18-3,316.32-1,355.46

Finding the Fourth Proportional to 2,403.18, 3,316.32 and 1,355.46

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Solution

The fourth proportional to 2,403.18, 3,316.32 and 1,355.46 is: 1,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.18 : 3,316.32 = 1,355.46 : x
  2. Step 2: Convert to fraction form
    2,403.18/3,316.32 = 1,355.46/x
  3. Step 3: Cross multiply
    2,403.18x = 3,316.32 × 1,355.46
  4. Step 4: Simplify right side
    2,403.18x = 4,495,139.11
  5. Step 5: Solve for x
    x = 4,495,139.11/2,403.18
  6. Step 6: Final answer
    x = 1,870.50

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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.