Home / 2,580.15-3,870.20-632.35

Finding the Fourth Proportional to 2,580.15, 3,870.20 and 632.35

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Solution

The fourth proportional to 2,580.15, 3,870.20 and 632.35 is: 948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.15 : 3,870.20 = 632.35 : x
  2. Step 2: Convert to fraction form
    2,580.15/3,870.20 = 632.35/x
  3. Step 3: Cross multiply
    2,580.15x = 3,870.20 × 632.35
  4. Step 4: Simplify right side
    2,580.15x = 2,447,317.81
  5. Step 5: Solve for x
    x = 2,447,317.81/2,580.15
  6. Step 6: Final answer
    x = 948.52

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1.5x scale

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.