Home / 1,931.10-2,895.66-632.40

Finding the Fourth Proportional to 1,931.10, 2,895.66 and 632.40

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Solution

The fourth proportional to 1,931.10, 2,895.66 and 632.40 is: 948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.10 : 2,895.66 = 632.40 : x
  2. Step 2: Convert to fraction form
    1,931.10/2,895.66 = 632.40/x
  3. Step 3: Cross multiply
    1,931.10x = 2,895.66 × 632.40
  4. Step 4: Simplify right side
    1,931.10x = 1,831,215.38
  5. Step 5: Solve for x
    x = 1,831,215.38/1,931.10
  6. Step 6: Final answer
    x = 948.28

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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.