Home / 7,070.41-10,605.75-2,140.03

Finding the Fourth Proportional to 7,070.41, 10,605.75 and 2,140.03

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Solution

The fourth proportional to 7,070.41, 10,605.75 and 2,140.03 is: 3,210.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.41 : 10,605.75 = 2,140.03 : x
  2. Step 2: Convert to fraction form
    7,070.41/10,605.75 = 2,140.03/x
  3. Step 3: Cross multiply
    7,070.41x = 10,605.75 × 2,140.03
  4. Step 4: Simplify right side
    7,070.41x = 22,696,623.17
  5. Step 5: Solve for x
    x = 22,696,623.17/7,070.41
  6. Step 6: Final answer
    x = 3,210.09

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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.