Home / 1,407.02-2,111.58-530.39

Finding the Fourth Proportional to 1,407.02, 2,111.58 and 530.39

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Solution

The fourth proportional to 1,407.02, 2,111.58 and 530.39 is: 795.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.02 : 2,111.58 = 530.39 : x
  2. Step 2: Convert to fraction form
    1,407.02/2,111.58 = 530.39/x
  3. Step 3: Cross multiply
    1,407.02x = 2,111.58 × 530.39
  4. Step 4: Simplify right side
    1,407.02x = 1,119,950.36
  5. Step 5: Solve for x
    x = 1,119,950.36/1,407.02
  6. Step 6: Final answer
    x = 795.98

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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.