Home / 1,931.64-2,897.29-1,054.81

Finding the Fourth Proportional to 1,931.64, 2,897.29 and 1,054.81

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Solution

The fourth proportional to 1,931.64, 2,897.29 and 1,054.81 is: 1,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.64 : 2,897.29 = 1,054.81 : x
  2. Step 2: Convert to fraction form
    1,931.64/2,897.29 = 1,054.81/x
  3. Step 3: Cross multiply
    1,931.64x = 2,897.29 × 1,054.81
  4. Step 4: Simplify right side
    1,931.64x = 3,056,090.46
  5. Step 5: Solve for x
    x = 3,056,090.46/1,931.64
  6. Step 6: Final answer
    x = 1,582.12

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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.