Home / 2,303.55-3,179.49-1,420.08

Finding the Fourth Proportional to 2,303.55, 3,179.49 and 1,420.08

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Solution

The fourth proportional to 2,303.55, 3,179.49 and 1,420.08 is: 1,960.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.55 : 3,179.49 = 1,420.08 : x
  2. Step 2: Convert to fraction form
    2,303.55/3,179.49 = 1,420.08/x
  3. Step 3: Cross multiply
    2,303.55x = 3,179.49 × 1,420.08
  4. Step 4: Simplify right side
    2,303.55x = 4,515,130.16
  5. Step 5: Solve for x
    x = 4,515,130.16/2,303.55
  6. Step 6: Final answer
    x = 1,960.07

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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.