Home / 2,891,147.22-3,989,806.77-1,602,009.12

Finding the Fourth Proportional to 2,891,147.22, 3,989,806.77 and 1,602,009.12

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Solution

The fourth proportional to 2,891,147.22, 3,989,806.77 and 1,602,009.12 is: 2,210,785.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,147.22 : 3,989,806.77 = 1,602,009.12 : x
  2. Step 2: Convert to fraction form
    2,891,147.22/3,989,806.77 = 1,602,009.12/x
  3. Step 3: Cross multiply
    2,891,147.22x = 3,989,806.77 × 1,602,009.12
  4. Step 4: Simplify right side
    2,891,147.22x = 6,391,706,832,577.74
  5. Step 5: Solve for x
    x = 6,391,706,832,577.74/2,891,147.22
  6. Step 6: Final answer
    x = 2,210,785.67

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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.