Home / 1,533.64-2,116.36-904.36

Finding the Fourth Proportional to 1,533.64, 2,116.36 and 904.36

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Solution

The fourth proportional to 1,533.64, 2,116.36 and 904.36 is: 1,247.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.64 : 2,116.36 = 904.36 : x
  2. Step 2: Convert to fraction form
    1,533.64/2,116.36 = 904.36/x
  3. Step 3: Cross multiply
    1,533.64x = 2,116.36 × 904.36
  4. Step 4: Simplify right side
    1,533.64x = 1,913,951.33
  5. Step 5: Solve for x
    x = 1,913,951.33/1,533.64
  6. Step 6: Final answer
    x = 1,247.98

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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.