Home / 2,130,537.60-3,191,659.20-1,286,582.40

Finding the Fourth Proportional to 2,130,537.60, 3,191,659.20 and 1,286,582.40

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Solution

The fourth proportional to 2,130,537.60, 3,191,659.20 and 1,286,582.40 is: 1,927,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,537.60 : 3,191,659.20 = 1,286,582.40 : x
  2. Step 2: Convert to fraction form
    2,130,537.60/3,191,659.20 = 1,286,582.40/x
  3. Step 3: Cross multiply
    2,130,537.60x = 3,191,659.20 × 1,286,582.40
  4. Step 4: Simplify right side
    2,130,537.60x = 4,106,332,553,518.08
  5. Step 5: Solve for x
    x = 4,106,332,553,518.08/2,130,537.60
  6. Step 6: Final answer
    x = 1,927,369.20

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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.