Home / 2,845.36-3,925.28-1,782.77

Finding the Fourth Proportional to 2,845.36, 3,925.28 and 1,782.77

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Solution

The fourth proportional to 2,845.36, 3,925.28 and 1,782.77 is: 2,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.36 : 3,925.28 = 1,782.77 : x
  2. Step 2: Convert to fraction form
    2,845.36/3,925.28 = 1,782.77/x
  3. Step 3: Cross multiply
    2,845.36x = 3,925.28 × 1,782.77
  4. Step 4: Simplify right side
    2,845.36x = 6,997,862.51
  5. Step 5: Solve for x
    x = 6,997,862.51/2,845.36
  6. Step 6: Final answer
    x = 2,459.40

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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.