Home / 1,931.48-2,665.54-1,135.35

Finding the Fourth Proportional to 1,931.48, 2,665.54 and 1,135.35

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Solution

The fourth proportional to 1,931.48, 2,665.54 and 1,135.35 is: 1,566.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.48 : 2,665.54 = 1,135.35 : x
  2. Step 2: Convert to fraction form
    1,931.48/2,665.54 = 1,135.35/x
  3. Step 3: Cross multiply
    1,931.48x = 2,665.54 × 1,135.35
  4. Step 4: Simplify right side
    1,931.48x = 3,026,322.26
  5. Step 5: Solve for x
    x = 3,026,322.26/1,931.48
  6. Step 6: Final answer
    x = 1,566.84

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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.