Home / 2,131,421.60-3,197,132.40-1,655,530.40

Finding the Fourth Proportional to 2,131,421.60, 3,197,132.40 and 1,655,530.40

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Solution

The fourth proportional to 2,131,421.60, 3,197,132.40 and 1,655,530.40 is: 2,483,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,421.60 : 3,197,132.40 = 1,655,530.40 : x
  2. Step 2: Convert to fraction form
    2,131,421.60/3,197,132.40 = 1,655,530.40/x
  3. Step 3: Cross multiply
    2,131,421.60x = 3,197,132.40 × 1,655,530.40
  4. Step 4: Simplify right side
    2,131,421.60x = 5,292,949,881,024.96
  5. Step 5: Solve for x
    x = 5,292,949,881,024.96/2,131,421.60
  6. Step 6: Final answer
    x = 2,483,295.60

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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.