Home / 2,303.53-3,178.88-1,308.81

Finding the Fourth Proportional to 2,303.53, 3,178.88 and 1,308.81

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Solution

The fourth proportional to 2,303.53, 3,178.88 and 1,308.81 is: 1,806.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.53 : 3,178.88 = 1,308.81 : x
  2. Step 2: Convert to fraction form
    2,303.53/3,178.88 = 1,308.81/x
  3. Step 3: Cross multiply
    2,303.53x = 3,178.88 × 1,308.81
  4. Step 4: Simplify right side
    2,303.53x = 4,160,549.93
  5. Step 5: Solve for x
    x = 4,160,549.93/2,303.53
  6. Step 6: Final answer
    x = 1,806.16

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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.