Home / 1,887.96-2,603.40-1,328.24

Finding the Fourth Proportional to 1,887.96, 2,603.40 and 1,328.24

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Solution

The fourth proportional to 1,887.96, 2,603.40 and 1,328.24 is: 1,831.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.96 : 2,603.40 = 1,328.24 : x
  2. Step 2: Convert to fraction form
    1,887.96/2,603.40 = 1,328.24/x
  3. Step 3: Cross multiply
    1,887.96x = 2,603.40 × 1,328.24
  4. Step 4: Simplify right side
    1,887.96x = 3,457,940.02
  5. Step 5: Solve for x
    x = 3,457,940.02/1,887.96
  6. Step 6: Final answer
    x = 1,831.57

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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.