Home / 3,435.86-5,146.47-1,678.16

Finding the Fourth Proportional to 3,435.86, 5,146.47 and 1,678.16

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Solution

The fourth proportional to 3,435.86, 5,146.47 and 1,678.16 is: 2,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.86 : 5,146.47 = 1,678.16 : x
  2. Step 2: Convert to fraction form
    3,435.86/5,146.47 = 1,678.16/x
  3. Step 3: Cross multiply
    3,435.86x = 5,146.47 × 1,678.16
  4. Step 4: Simplify right side
    3,435.86x = 8,636,600.10
  5. Step 5: Solve for x
    x = 8,636,600.10/3,435.86
  6. Step 6: Final answer
    x = 2,513.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.