Home / 2,298.20-3,171.53-1,303.45

Finding the Fourth Proportional to 2,298.20, 3,171.53 and 1,303.45

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Solution

The fourth proportional to 2,298.20, 3,171.53 and 1,303.45 is: 1,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,298.20 : 3,171.53 = 1,303.45 : x
  2. Step 2: Convert to fraction form
    2,298.20/3,171.53 = 1,303.45/x
  3. Step 3: Cross multiply
    2,298.20x = 3,171.53 × 1,303.45
  4. Step 4: Simplify right side
    2,298.20x = 4,133,926.11
  5. Step 5: Solve for x
    x = 4,133,926.11/2,298.20
  6. Step 6: Final answer
    x = 1,798.77

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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.