Home / 2,668,649.20-3,679,075.08-1,688,100.40

Finding the Fourth Proportional to 2,668,649.20, 3,679,075.08 and 1,688,100.40

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Solution

The fourth proportional to 2,668,649.20, 3,679,075.08 and 1,688,100.40 is: 2,327,262.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668,649.20 : 3,679,075.08 = 1,688,100.40 : x
  2. Step 2: Convert to fraction form
    2,668,649.20/3,679,075.08 = 1,688,100.40/x
  3. Step 3: Cross multiply
    2,668,649.20x = 3,679,075.08 × 1,688,100.40
  4. Step 4: Simplify right side
    2,668,649.20x = 6,210,648,114,178.03
  5. Step 5: Solve for x
    x = 6,210,648,114,178.03/2,668,649.20
  6. Step 6: Final answer
    x = 2,327,262.84

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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.