Home / 2,225.13-3,070.47-1,230.28

Finding the Fourth Proportional to 2,225.13, 3,070.47 and 1,230.28

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Solution

The fourth proportional to 2,225.13, 3,070.47 and 1,230.28 is: 1,697.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.13 : 3,070.47 = 1,230.28 : x
  2. Step 2: Convert to fraction form
    2,225.13/3,070.47 = 1,230.28/x
  3. Step 3: Cross multiply
    2,225.13x = 3,070.47 × 1,230.28
  4. Step 4: Simplify right side
    2,225.13x = 3,777,537.83
  5. Step 5: Solve for x
    x = 3,777,537.83/2,225.13
  6. Step 6: Final answer
    x = 1,697.67

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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.