Home / 3,210.63-4,430.73-1,813.38

Finding the Fourth Proportional to 3,210.63, 4,430.73 and 1,813.38

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Solution

The fourth proportional to 3,210.63, 4,430.73 and 1,813.38 is: 2,502.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.63 : 4,430.73 = 1,813.38 : x
  2. Step 2: Convert to fraction form
    3,210.63/4,430.73 = 1,813.38/x
  3. Step 3: Cross multiply
    3,210.63x = 4,430.73 × 1,813.38
  4. Step 4: Simplify right side
    3,210.63x = 8,034,597.17
  5. Step 5: Solve for x
    x = 8,034,597.17/3,210.63
  6. Step 6: Final answer
    x = 2,502.50

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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.