Home / 1,903.36-2,626.50-1,117.30

Finding the Fourth Proportional to 1,903.36, 2,626.50 and 1,117.30

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Solution

The fourth proportional to 1,903.36, 2,626.50 and 1,117.30 is: 1,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.36 : 2,626.50 = 1,117.30 : x
  2. Step 2: Convert to fraction form
    1,903.36/2,626.50 = 1,117.30/x
  3. Step 3: Cross multiply
    1,903.36x = 2,626.50 × 1,117.30
  4. Step 4: Simplify right side
    1,903.36x = 2,934,588.45
  5. Step 5: Solve for x
    x = 2,934,588.45/1,903.36
  6. Step 6: Final answer
    x = 1,541.79

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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.